280155148

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2557}}^1$

素因数の和:2631

約数の個数: 72

約数和(自身を含む): 628715472

約数和(自身を除く): 348560324

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 49, 52, 86, 91, 98, 172, 182, 196, 301, 364, 559, 602, 637, 1118, 1204, 1274, 2107, 2236, 2548, 2557, 3913, 4214, 5114, 7826, 8428, 10228, 15652, 17899, 27391, 33241, 35798, 54782, 66482, 71596, 109564, 109951, 125293, 132964, 219902, 232687, 250586, 439804, 465374, 501172, 769657, 930748, 1429363, 1539314, 1628809, 2858726, 3078628, 3257618, 5387599, 5717452, 6515236, 10005541, 10775198, 20011082, 21550396, 40022164, 70038787, 140077574, 280155148]

約数ペア:

[(1, 280155148), (2, 140077574), (4, 70038787), (7, 40022164), (13, 21550396), (14, 20011082), (26, 10775198), (28, 10005541), (43, 6515236), (49, 5717452), (52, 5387599), (86, 3257618), (91, 3078628), (98, 2858726), (172, 1628809), (182, 1539314), (196, 1429363), (301, 930748), (364, 769657), (559, 501172), (602, 465374), (637, 439804), (1118, 250586), (1204, 232687), (1274, 219902), (2107, 132964), (2236, 125293), (2548, 109951), (2557, 109564), (3913, 71596), (4214, 66482), (5114, 54782), (7826, 35798), (8428, 33241), (10228, 27391), (15652, 17899)]